Royal obsessives love a good theory even more than they enjoy finding examples of Kate Middleton daring to wear items of clothing more than once.
Case in point: the absolutely bonkers "explanation" for why Meghan Markle’s latest hairstyle is a surefire sign she’s with child. Yep. It's wild, so buckle in.

On Monday, the Duchess of Sussex attended the Coach Core Awards at Loughborough University with her husband Prince Harry.

Meghan, 37, eschewed the hairstyles that have become her go-tos since she married into the Royal Family - that is, loose waves and messy buns - opting instead to wear her hair poker straight.

Her hair's full of secrets... apparently. (PA/AAP)

What’s that? You didn’t even notice? Fair enough. Back in her acting days, the Duchess was regularly seen with straight hair, so this isn’t really anything out of the ordinary.

However, nothing is ever a coincidence when it comes to the monarchy - or so its most observant fans might have you believe.

This might sound far-fetched, but fans soon unearthed photographic evidence that seemingly backed up the curious pattern proposed by Procter and her mates.

A month before the Cambridges’ third pregnancy was confirmed, Catherine was snapped courtside at Wimbledon with a fresh new haircut, having lost several inches of length.

Naturally, the chop generated a flurry of headlines, with all eyes on the Duchess’ new hair… and, conveniently, away from her stomach.

That face when you're pregnant with your third child, but nobody's figured it out because they're all looking at your haircut. (PA/AAP)

Similarly, ahead of the news she was pregnant with Princess Charlotte, media reports were focused on the royal mum's "grey roots showing through".

(Hey, whatever it takes to throw the world's media off the scent, right?)

Oh, and remember the time Catherine had a long fringe cut into her hair and, once again, sent the media into a spin? Yep, that happened six days before it was confirmed she and Prince William were set to become first-time parents.

Royal fans are convinced Meghan's straight hair is a sign she's pregnant. (Getty)

Of course, these are most likely examples of peculiar timing; similarly, Meghan's straight hair was probably a spur of the moment decision as she was being styled ahead of the event.

However, pregnancy speculation is already beginning to surround the Duchess, so fans are eager to snap up any possible indication a baby Sussex is on the way.

It might be time to return to those glossy waves, so royal watchers don't get any more ideas...